Ethynylestradiol (20,21-13C2,99%) 100 µg/mL in Acetonitrile, 1,2ml Back Catalog number: CLM-3375-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 2407.10-K-IPX5 4-n-Butylphenol-2,3,5,6-d4, OD, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 1219795-04-6 Price on request 674015 MCPB, 100 µg/ml, Acetonitrile, 5ml Price on request 95345 VOC Standard Price on request